CN113381970B - Front-end data acquisition and processing system for broadband measurement of main station end - Google Patents
Front-end data acquisition and processing system for broadband measurement of main station end Download PDFInfo
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- CN113381970B CN113381970B CN202010160336.XA CN202010160336A CN113381970B CN 113381970 B CN113381970 B CN 113381970B CN 202010160336 A CN202010160336 A CN 202010160336A CN 113381970 B CN113381970 B CN 113381970B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/08—Protocols for interworking; Protocol conversion
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
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Abstract
The invention discloses a master station end broadband measurement preposed data acquisition and processing system which comprises a link communication module, a protocol analysis module, a dynamic data processing module, a link data cache area, a fundamental wave dynamic data cache area and a harmonic dynamic data cache area, wherein the link communication module is used for writing broadband measurement data acquired by each station end broadband measurement device into the link data cache area through a management pipeline, a data pipeline and a file pipeline, the protocol analysis module is used for analyzing original message data and identifying fundamental wave, harmonic and inter-harmonic dynamic data, the fundamental wave dynamic data cache area is used for storing fundamental wave dynamic data according to a certain structure, the harmonic dynamic data cache area is used for storing harmonic dynamic data according to a certain structure, and the dynamic data processing module is used for submitting the fundamental wave and harmonic data to a time sequence database. The invention realizes the high-speed acquisition and processing of the broadband measurement data of the station end such as fundamental wave, harmonic wave, inter-harmonic wave and the like, and provides stable and reliable data sources for the wide-area broadband measurement master station.
Description
Technical Field
The invention relates to the technical field of wide-area broadband measurement of an electric power system, in particular to a front-end broadband measurement data acquisition and processing system of a main station end.
Background
With the wide application of the distributed energy source to the power grid and the power electronic technology in the power grid, the disturbance phenomena such as power grid harmonic wave and inter-harmonic wave oscillation, subsynchronous oscillation and the like occur more frequently. The harmonic wave is an integer multiple periodic sine wave electric component of the fundamental wave frequency, the inter-harmonic wave is a non-integer multiple periodic sine wave electric component of the fundamental wave frequency, and the existence of harmonic wave and inter-harmonic wave oscillation seriously threatens the safe operation of the power system. The prior WAMS (Wide Area Measurement System ) master station only collects fundamental wave vector data of a PMU (Phasor Measurement Unit, synchronous phasor measurement) device, and cannot meet the collection requirement of harmonic wave and inter-harmonic wave data.
Disclosure of Invention
The invention provides a broadband measurement preposed data acquisition and processing system of a master station end, which solves the problem that the prior WAMS master station cannot acquire and process harmonic and inter-harmonic data.
In order to solve the technical problems, the invention adopts the following technical scheme:
a broadband measurement front-end data acquisition processing system of a main station end comprises: the system comprises a link communication module, a protocol analysis module, a dynamic data processing module, a link data cache region, a fundamental wave dynamic data cache region and a harmonic dynamic data cache region;
the fundamental wave dynamic data cache area and the harmonic wave dynamic data cache area are connected with the protocol analysis module and the dynamic data processing module;
the link communication module is used for establishing communication links with the broadband measuring devices of the station ends, receiving operation commands sent by the protocol analysis module and sent by the link data cache area, and receiving data acquired by the broadband measuring devices of the station ends;
the link data buffer area is used for storing data collected by the broadband measuring device at each station end sent by the link communication module and storing operation instructions issued by the protocol analysis module;
the protocol analysis module is used for analyzing the original message data issued by the link data cache area, writing the obtained fundamental wave dynamic data into the fundamental wave dynamic data cache area, and writing the obtained harmonic wave and inter-harmonic wave dynamic data into the harmonic wave dynamic data cache area;
the fundamental wave dynamic data buffer area is used for storing fundamental wave dynamic data according to the hierarchical structure of the station serial number, the device serial number, the measuring point type and the measuring point serial number;
the harmonic dynamic data buffer area is used for storing harmonic dynamic data and inter-harmonic dynamic data according to a hierarchical structure of a station serial number-a device serial number-a harmonic frequency-a measuring point type-a measuring point serial number;
the dynamic data processing module is used for sequentially submitting and storing the fundamental wave dynamic data stored in the fundamental wave dynamic data buffer area and the harmonic wave and inter-harmonic dynamic wave data stored in the harmonic dynamic data buffer area into the time sequence database.
Further, the link communication module is specifically configured to,
and establishing communication links with a management pipeline, a data pipeline and a file pipeline of the broadband measurement device at each station end.
Further, the link communication module is specifically configured to,
the operation command issued by the protocol analysis module to the link data buffer area is sent to the broadband measuring device at each station end through the management pipeline,
and storing the broadband measurement data acquired by the broadband measurement devices at the station ends into a link data buffer area through a data pipeline.
Furthermore, the protocol analysis module is specifically used for,
according to the broadband signal transmission protocol, analyzing the original message data issued by the link data buffer area, and distinguishing fundamental wave dynamic data or harmonic wave and inter-harmonic wave dynamic data according to the data frame type defined by the specification.
Further, the fundamental wave dynamic data, the harmonic wave and inter-harmonic wave dynamic data are of a ring-shaped cache structure;
a plurality of element items and two indexes of a write index W and a read index R are defined in the ring buffer structure,
item is fundamental wave data written into the ring at a certain time, the write index W corresponds to a write position, and the read index R corresponds to a read position.
Further, in the ring buffer structure, when writing data, it is ensured that the ring is not full, then the data is copied to the element corresponding to the write index W, and finally the write index W points to the next element
When reading data, firstly ensuring that the ring is not blank, then returning the element corresponding to the read index R, and finally pointing to the next element.
Further, the dynamic data processing module is specifically configured to,
and circulating to traverse all the measuring points at the main station end according to the station serial number, the device serial number, the measuring point type and the measuring point serial number, positioning the corresponding fundamental wave dynamic data or harmonic wave dynamic data storage positions according to the station serial number, the device serial number, the measuring point type and the measuring point serial number, finding the corresponding data in the ring according to the read index R, and submitting the data to a time sequence library.
The beneficial effects of the invention are as follows:
the invention adopts a simple and clear layered architecture, can effectively reduce the coupling degree between data acquisition, processing and storage, can realize the high-speed acquisition and processing of broadband measurement data such as fundamental waves, harmonic waves, inter-harmonic waves and the like at the main station end, and provides stable and reliable data sources for the wide-area broadband measurement main station.
Drawings
FIG. 1 is a schematic diagram of a system for acquiring and processing broadband measurement front-end data at a master station end;
fig. 2 is a schematic diagram of fundamental dynamic data and harmonic dynamic data structures.
Detailed Description
The invention is further described below. The following examples are only for more clearly illustrating the technical aspects of the present invention, and are not intended to limit the scope of the present invention.
The invention provides a system for acquiring and processing broadband measurement front-end data of a master station, which is shown in fig. 1, and comprises the following components: the system comprises a link communication module S1, a protocol analysis module S3, a dynamic data processing module S6, a link data buffer area S2, a fundamental wave dynamic data buffer area S4 and a harmonic dynamic data buffer area S5.
The link data buffer area S2 is connected with the link communication module S1 and the protocol analysis module S3, and the fundamental wave dynamic data buffer area S4 and the harmonic wave dynamic data buffer area S5 are connected with the protocol analysis module S3 and the dynamic data processing module S6.
Link communication module S1: establishing communication links with management pipelines, data pipelines and file pipelines of the broadband measurement devices at the station ends, sending operation commands (such as opening real-time data, closing real-time data, resetting a system and the like) issued by the protocol analysis module S3 to the link data buffer area S2 to the broadband measurement devices at the station ends through the management pipelines, and storing broadband measurement data acquired by the broadband measurement devices at the station ends into the link data buffer area S2 through the data pipelines.
Link data buffer S2: and storing original message data of a management pipeline, a data pipeline and a file pipeline of the broadband measurement device at each station end sent by the link communication module S1 and an operation instruction issued by the protocol analysis module S3.
The protocol parsing module S3: according to the broadband signal transmission protocol, the original message data in the link data cache area S2 is analyzed, whether fundamental wave dynamic data or harmonic wave and inter-harmonic wave dynamic data are distinguished according to the data frame types defined by specifications, the obtained fundamental wave dynamic data are written into the fundamental wave dynamic data cache area S4, and the obtained harmonic wave and inter-harmonic wave dynamic data are written into the harmonic wave dynamic data cache area S5.
Fundamental wave dynamic data buffer S4: and storing fundamental wave dynamic data according to the hierarchical structure of the station serial number, the device serial number, the measuring point type and the measuring point serial number, and directly positioning the index data to the corresponding fundamental wave dynamic data storage position according to the station serial number, the device serial number, the measuring point type and the measuring point serial number.
Specifically, the fundamental dynamic data is a ring buffer structure, referring to fig. 2, a plurality of element items, two index write indexes W and a read index R may be defined, where item is fundamental data written into the ring at a certain time, write index W corresponds to a write position, and read index R corresponds to a read position. When writing, firstly, the ring is ensured to be not full, then the data is copied to the element corresponding to the writing index W, and finally the writing index W points to the next element. When reading, firstly ensuring that the ring is not blank, then returning the element corresponding to the reading index R, and finally pointing to the next element by the reading index R.
Specifically, the station serial number and the device serial number are defined when a station and a broadband measuring device are configured at the master station end, the station serial number ensures that the master station system is unique, and the device serial number ensures that the station is unique. The measuring point type and the measuring point serial number are obtained by analyzing the original message of the fundamental wave dynamic data by the protocol analyzing module S3 according to the broadband signal transmission protocol.
Harmonic dynamic data buffer S5: and storing harmonic dynamic data and inter-harmonic dynamic data according to a hierarchical structure of the station serial number, the device serial number, the harmonic frequency, the measuring point type and the measuring point serial number, and directly positioning the data to corresponding harmonic or inter-harmonic dynamic data storage positions according to the station serial number, the device serial number, the harmonic frequency, the measuring point type and the measuring point serial number during indexing the data.
Specifically, the harmonic dynamic data structure is identical to the fundamental dynamic data structure.
Specifically, the station serial number and the device serial number are customized when a station and a broadband measurement device are configured at the master station. The harmonic frequency, the measuring point type and the measuring point serial number are obtained by analyzing the original message of the harmonic dynamic data by the protocol analyzing module S3 according to the broadband signal transmission protocol.
The dynamic data processing module S6: and sequentially submitting and storing the fundamental wave dynamic data stored in the fundamental wave dynamic data buffer area S4 and the harmonic wave and inter-harmonic dynamic wave data stored in the harmonic dynamic data buffer area S5 into a time sequence database, and performing advanced application query analysis.
Specifically, the dynamic data processing module circularly traverses all the measuring points at the main station end according to the station serial number, the device serial number, the measuring point type and the measuring point serial number, positions corresponding fundamental wave dynamic data or harmonic wave dynamic data storage positions according to the station serial number, the device serial number, the measuring point type and the measuring point serial number, finds corresponding data in a ring according to a reading index R, and submits the data to the time sequence library.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (5)
1. The utility model provides a leading data acquisition processing system of main website end broadband measurement which characterized in that includes: the system comprises a link communication module, a protocol analysis module, a dynamic data processing module, a link data cache region, a fundamental wave dynamic data cache region and a harmonic dynamic data cache region;
the fundamental wave dynamic data cache area and the harmonic wave dynamic data cache area are connected with the protocol analysis module and the dynamic data processing module;
the link communication module is used for establishing communication links with the broadband measuring devices of the station ends, receiving operation commands sent by the protocol analysis module and sent by the link data cache area, and receiving data acquired by the broadband measuring devices of the station ends;
the link data buffer area is used for storing data collected by the broadband measuring device at each station end sent by the link communication module and storing operation instructions issued by the protocol analysis module;
the protocol analysis module is used for analyzing the original message data issued by the link data cache area, writing the obtained fundamental wave dynamic data into the fundamental wave dynamic data cache area, and writing the obtained harmonic wave and inter-harmonic wave dynamic data into the harmonic wave dynamic data cache area;
the fundamental wave dynamic data buffer area is used for storing fundamental wave dynamic data according to the hierarchical structure of the station serial number, the device serial number, the measuring point type and the measuring point serial number;
the harmonic dynamic data buffer area is used for storing harmonic dynamic data and inter-harmonic dynamic data according to a hierarchical structure of a station serial number-a device serial number-a harmonic frequency-a measuring point type-a measuring point serial number;
the fundamental wave dynamic data, the harmonic wave and inter-harmonic wave dynamic data are of a ring-shaped cache structure; defining a plurality of element items, two index write indexes W and a read index R in the annular cache structure, wherein the item is fundamental wave data written into the ring at a certain moment, the write index W corresponds to a write position, and the read index R corresponds to a read position;
the dynamic data processing module is used for sequentially submitting and storing the fundamental wave dynamic data stored in the fundamental wave dynamic data buffer area and the harmonic wave and inter-harmonic dynamic wave data stored in the harmonic wave dynamic data buffer area into the time sequence database, specifically, circulating and traversing all the measuring points at the main station end according to the station serial number, the device serial number, the measuring point type and the measuring point serial number, positioning the corresponding fundamental wave dynamic data or the storage position of the harmonic wave dynamic data according to the station serial number, the device serial number, the measuring point type and the measuring point serial number, finding the corresponding data in the ring according to the read index R, and submitting the data to the time sequence database.
2. The broadband measurement front-end data acquisition and processing system of claim 1, wherein the link communication module is specifically configured to,
and establishing communication links with a management pipeline, a data pipeline and a file pipeline of the broadband measurement device at each station end.
3. The broadband measurement front-end data acquisition and processing system of claim 2, wherein the link communication module is specifically configured to,
the operation command issued by the protocol analysis module to the link data buffer area is sent to the broadband measuring device at each station end through the management pipeline,
and storing the broadband measurement data acquired by the broadband measurement devices at the station ends into a link data buffer area through a data pipeline.
4. The system for acquiring and processing broadband measurement front-end data at a master station according to claim 1, wherein the protocol analysis module is specifically configured to,
according to the broadband signal transmission protocol, analyzing the original message data issued by the link data buffer area, and distinguishing fundamental wave dynamic data or harmonic wave and inter-harmonic wave dynamic data according to the data frame type defined by the specification.
5. The system for acquiring and processing broadband measurement front-end data at the master station end according to claim 1, wherein in the ring-shaped buffer structure, when data is written, the ring is not full, then the data is copied to an element corresponding to a write index W, and finally the write index W points to the next element;
when reading data, firstly ensuring that the ring is not blank, then returning the element corresponding to the read index R, and finally pointing to the next element.
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